我在這里收到錯誤錯誤是（'str' object 不可調用）

Question

print("Lets play a game")
print("You have to operte on some numbers")

print("Are you ready? , type yes or no ")

input = input().lower()

if input == "yes":
    print("Ok now type your name and age (comma separated)")
    name = input()
    age = int(input())
    if "\"" in name or ">" in name :
        print("Use only alphanumeric characters")
    else:
        pass
    if age <= 10 :
        print("You cant play this game")

我不斷收到此錯誤'str' object is not callable在第 10 行。

Answer 1

您正在使用input變量隱藏內置input() function，因此第二次調用input()它會嘗試“調用”字符串變量。

當用戶沒有輸入您期望的內容時，您必須弄清楚該怎么做，但這里有一個代碼可能看起來像這樣的框架：

print("Let's play a game")
print("You have to operate on some numbers")
text = input("Are you ready (yes/no)?").lower()

if text == "yes":
    text = input("Enter your name and age (comma separated):")
    fields = text.split(",")
    if len(fields) != 2:
        # Handle case of bad user input format

    name = fields[0].trim()
    if not all(c.isalpha() or c.isspace() for c in name):
        # Handle case of bad entered name
    try:
        age = int(fields[1])
    except ValueError:
        # Handle case of bad entered age

    if age <= 10:
        print("You cannot play this game")

Answer 2

您遇到的問題來自變量的名稱“輸入”。 如果您更改它，在我的示例中為“准備好”，您將避免該錯誤。

我還建議包含檢查輸入的函數並使用 while 循環，這樣如果出現意外輸入，程序就不會完成。

請看下面我的代碼：

def check_predefined_input(variable, values, input_question, error_message, check = False):
    variable = str(input(input_question))
    try:
        if(variable.lower() in values):
            check = True
        else:
            raise Exception ("You have inserted an invalid option.")
    except Exception as e:
        print("ERROR: ", e)
        print(error_message, "\n")
        check = False
    return variable, check

def check_string_input(variable, input_question, error_message, check = False):
    variable = input(input_question)
    if "\"" in variable or ">" in variable:
        print("ERROR: ", error_message, "\n")
        check = False
    else:
        check = True
    return variable, check

def check_int_input(variable, input_question, error_message, check = False):
    try:
        variable = int(input(input_question))
        check = True
    except ValueError as ve:
        print("ERROR: ", ve)
        print(error_message, "\n")
        variable = 0
        check = False
    return variable, check

print("Lets play a game")
print("You have to operate on some numbers")

ready_values = ["yes", "no"]
ready = ''
ready_input_question = "Are you ready? , type yes or no "
ready_error_message =  "\tMake sure your answer is yes or not."
ready_check = False
while not ready_check:
    ready, ready_check = check_predefined_input(ready, ready_values, ready_input_question, ready_error_message, ready_check)


if ready == "yes":
    name = ""
    name_check = False
    name_input_question = "Ok now type your name: "
    name_error_message = "Use only alphanumeric characters"
    while not name_check:
        name, name_check = check_string_input(name, name_input_question, name_error_message, name_check)

    age = 0
    age_check = False
    age_input_question = 'Please, ' + name + ', insert your age: '
    age_error_message =  '\tMake sure you insert your age.\n\tDo not insert letters.'
    while not age_check:
        age, age_check= check_int_input(age, age_input_question, age_error_message)

    if age <= 10 :
        print("You cannot play this game")
    else:
        print("You are ready to play")